Seeds of life

时间:2019-03-07 11:16:01166网络整理admin

By Andy Coghlan THE building blocks of DNA could have formed in space before Earth was born, providing a starter kit of genetic material for life to evolve rapidly on Earth, claim astrochemists in India. Their computer models of chemicals evolving in space may explain why life emerged only 600 million years after the Earth formed 4.5 billion years ago. The model also suggests that comets are packed with the building blocks of life. If true,